5-Butyl-2-(4-methoxy-2-nitro-phenyl)-4-[2'-(1H-tetrazol-5-yl)-biphenyl-4-ylmethyl]-2H-pyrazole-3-carboxylic acid ethyl ester                                                                                                                                                              在
                                                                                                                                                                                 
sodium hydroxide                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
甲醇                                                                                  为溶剂,
                                                                                                                                                    反应 3.0h,
                                                                                                                以67%的产率得到5-Butyl-2-(4-methoxy-2-nitro-phenyl)-4-[2'-(1H-tetrazol-5-yl)-biphenyl-4-ylmethyl]-2H-pyrazole-3-carboxylic acid